Presidents vs. Aliens is a fun game designed to increase your knowledge of presidential history. Answer questions and earn powers to defeat the incoming aliens. Each level unlocks another president until you've collected all 44. Made by the developer of the popular Stack the States geography app. An OS X version is available in the Mac App Store. If you are looking for a presidential game that's more fun than factual, then check out Uncle Slam and let your presidents do some boxing.

Meet and greet the 44 US presidents in this app designed for kids. Includes presidential profiles, a rendition of "Hail To The Chief" and interesting facts on presidential places like Camp David. If you prefer a similar app that's less like an encyclopedia, then check out Disney American Presidents.